Prime Minister Anthony Albanese and Climate Change Minister Chris Bowen are due to hand down a 2035 target more ambitious than Australia's Canadian or New Zealand allies, but below the United Kingdom's, which is one of the most ambitious in the world.

The next major climate commitment, one of the most significant decisions Labor will make this term, will strike a middle path between like-minded nations.

It is expected to be committed in a meeting of cabinet today, before being taken to New York next week, where other world leaders will also gather to confirm their 2035 targets at a meeting of the United Nations General Assembly.

The commitment follows the release of the first National Climate Risk Assessment on Monday.

That report warned 1.5 million people could be affected by sea lev

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